<template name="appBody">
  {{#each thisArray}}
    {{> yield}}
  {{/each}}
  <!-- 全局导航   -->
  {{#unless connected}}
    <div class="notifications">
      <div class="notification">
        <span class="icon-sync"></span>
        <div class="meta">
          <div class="title-notification">正在连接</div>
          <div class="description">连接可能出现了问题</div>
        </div>
      </div>
    </div>
  {{/unless}}
</template>
